August 2000 - Zope-Dev

Re: [Zope-dev] LoginManager.
by Terje Malmedal 27 Aug '00

27 Aug '00

[Phillip J Eby] >> def retreiveItem(self, name): >> self.f.write('Creating object for %s\n' % name) >> return USER(name) > Your retrieveItem isn't checking to see if the user exists. Also, you > spelled it "retreive" when the correct spelling is "retrieve". Yep, as soon as I noticed the misspelling I was able to figure out what went on. So I've got a working usersource now. Thankyou. -- - Terje tm(a)funcom.com

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ZPatterns transaction bug
by Steve Alexander 27 Aug '00

27 Aug '00

I have a trigger that is a datamanager-plugin for a Customizer folder. The trigger listens to ADD events. If the trigger rasies an exception as it is notified that a new DataSkin object is being added beneath the customizer folder, I get a ZODB error: 2000-08-27T09:25:38 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\000*\336' Traceback (innermost last): File /usr/local/zope/SiteBox/lib/python/ZODB/Connection.py, line 442, in setstate File /usr/local/zope/SiteBox/lib/python/ZODB/FileStorage.py, line 587, in load (Object: /usr/local/zope/SiteBox/var/Data.fs) File /usr/local/zope/SiteBox/lib/python/ZODB/FileStorage.py, line 563, in _load (Object: /usr/local/zope/SiteBox/var/Data.fs) KeyError: *Þ Sometimes I get slightly different errors, where Zope refuses to commit any more transactions. Zope 2.2.1, ZPatterns 0-4-1snap1 with the DataSkins patch I posted a few minutes ago. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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Compatibility issues: ZPatterns 0.4.2,LoginManager 0.9.0
by Phillip J. Eby 26 Aug '00

26 Aug '00

Hi folks. I'm working on a ZPatterns 0.4.2b1 release for the early part of the coming week, and intend to bug Ty into perhaps releasing an 0.9.0 beta later in the week. However, these versions are likely to have some (hopefully minor) compatibility issues with previous releases. Specifically: * We would like to drop support for Zope 2.1.x from here on out. I know at least one user has a production 2.1.x system, and I hate to strand them, but at least they can continue to use existing ZPatterns releases until their client can upgrade. Dropping 2.1.x support means that we may be able to get rid of DynPersist, which should be a big plus for ease of installation. It also means that we'll be able to start adding newer capabilities that take advantage of 2.2.x-isms such as getPhysicalPath()/restrictedTraverse(), etc. * We would like to drop support for Specialists directly containing data plug-ins. This feature was intended to allow for acquiring shared data plug-ins from within Racks, so that common attribute or sheet providers could be shared among Racks without copying. In practice, Ty and I have never once used this capability, and it could be easily replaced with the ability to "include" a SkinScript within another SkinScript, if we take advantage of 2.2.x-isms. * Related to the above, the "Link to Acquired Provider" and "Acquired ... Provider" objects would no longer be needed, since they exist only to make use of shared plug-ins contained in Specialists. We would remove these classes from ZPatterns, causing any existing instances to become "broken". Deleting these "broken" objects, however, would restore normal operations of the system. As you can see, all of these issues are somewhat interrelated. I wanted to post some advance warning of all this, so that if anyone has any objections, they would have a last chance to protest. :) The overall release plan at this point is that the only other major features planned in the 0.4.x series are content providers (mirroring virtual sub-objects from SQL, LDAP, or whatever) and local role providers (computation by an object of local roles applicable to a user). I do expect to add a few minor features in the way of easier SkinScript editing, and some hooks to allow help to be added to the management tabs which are auto-generated for PlugInGroups. The next big project will be documentation, now that the feature set and terminology is beginning to stabilize.

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Re: [Zope-dev] zpatterns: how to invalidate the attributecache?
by Jephte CLAIN 26 Aug '00

26 Aug '00

"Phillip J. Eby" wrote: > I don't see a need for a mass invalidation operation, just more > documentation on these inner workings. :) or the lack of an attribute depencies mechanism :-) if attribute x depends on attribute y from another generic attribute provider, invalidation of y doesn't make y to be recomputed.

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LoginManager.
by Terje Malmedal 26 Aug '00

26 Aug '00

Can anybody please provide a simple example of a working usersource written in python? I've written this, but it just does not work, all that happens is that it writes opened to /tmp/source.log class USER: "Just a little test" name = None roles = [ 'Anonymous' , 'member' ] domains = [] def __init__(self, name): self.name = name class SolidUserSource(BasicUserSource): """ Solid User Source """ __plugin_kind__ = "User Source" meta_type = "Solid User Source" f = open("/tmp/source.log",'a',0) f.write("opened\n") #def __init__(id,title): # self.f.write("init %s %s\n" % (id,title)) # self.id = id # self.title = title def existsUser(self, name): self.f.write('Users exists %s\n' % name) return 1 def retreiveItem(self, name): self.f.write('Creating object for %s\n' % name) return USER(name) def rolesForUser(self, user): self.f.write('Returning roles for %s\n' % user.name) return user.roles def domainsForUser(self, user): self.f.write('Returning domains for %s\n' % user.name) return user.domains def authenticateUser(self, user, password, request): self.f.write('Authenticates user %s\n' % user.name) if user.name == 'aaa' and password == 'aaa': return 1 == 1 return 1 == 0 -- - Terje tm(a)funcom.com

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Re: ANNOUNCE: Zope 2.2.1 released - breaks my zclass instances too.
by Dr. Ross Lazarus 26 Aug '00

26 Aug '00

Same here - same as 2.2.0b1 - at least my event.log now shows an error message although the time/date stamp is STILL wrong 0-: ------ 2000-08-26T06:03:20 INFO(0) ZServer Monitor Server (V1.8.4.1) started on port 8099 ------ 2000-08-26T06:03:27 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\000\016\204' Traceback (innermost last): File /usr/local/zope/zope221/lib/python/ZODB/Connection.py, line 447, in setstate File /usr/local/zope/zope221/lib/python/ZODB/Connection.py, line 213, in _persistent_load (Info: File /usr/local/zope/zope221/lib/python/ZODB/Connection.py, line 154, in __getitem__ (Info: ('\000\000\000\000\000\000*\252', '(cExtensionClass\012ExtensionClass\012q\001(U\006ZDItemq\002(cZClasses.ZClass\012PersistentCl$ Could not load oid --- In zope(a)egroups.com, Andy Dustman <adustman@c...> wrote: > Sadly, 2.2.1 seems to break all my ZClass objects. The Products themselves > look fine, but any object made with them comes up as broken. The Class ID > (in the HTML source) looked like it had a * in front of it. I retrograded > to 2.2.0 and the problems went away. -- Dr Ross Lazarus Associate Professor and Sub-Dean for Information Technology Faculty of Medicine, Room 126A, A27, University of Sydney, Camperdown, NSW 2006, Australia Tel: (+61 2) 93514429 Mobile: +61414872482 Fax: (+61 2) 93516646 Email: rossl(a)med.usyd.edu.au

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Zope Content Management System
by Troy Coburn 25 Aug '00

25 Aug '00

Hi there, I am working on a project and have been looking at the Zope Content Management System as part of the solution. However, I have a couple of questions. From what I have seen so far, the page generation is all done through the Zope Management Interface, and the content of the page is done through a textarea requiring the user to have knowledge of the zope system(DTML) and HTML. With type type of solution I am looking for however, I need page content to be generated be users that have little or no knowledge of HTML. What I am wondering is if it is possible to integrate the Zope content management system with Cold Fusion as I can allow users with no knowledge of HTML to use an interface designed with Cold Fusion to create page content. I do not wish to build a content management system from scratch with Cold Fusion. Any suggestions and/or comments would be very helpful. Thanks Troy Coburn Programmer Analyst troy(a)qtrain.net <mailto:troy@qtrain.net> 506.460.1280 (tel) 506.460.1289 (fax) <http://www.qtrain.net/> www.qtrain.net Leaders in XML Architecture

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User object properties
by Yapo Sébastien 25 Aug '00

25 Aug '00

I'm trying to retrieve properties "nom" and "prenom" from a tweaked User object using : <dtml-with "REQUEST.AUTHENTICATED_USER"><dtml-with "getUser(id_resp_val)"><dtml-var nom><dtml-var prenom></dtml-with></dtml-with> where "id_resp_val'" contains the user login name.. I get the following error ... Error Type: AttributeError Error Value: __hash__ Traceback (innermost last): File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 179, in publish File C:\Program Files\Zope\lib\python\Zope\__init__.py, line 202, in zpublisher_exception_hook (Object: CatalogAware) File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 165, in publish File C:\Program Files\Zope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 102, in call_object (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\App\special_dtml.py, line 120, in __call__ (Object: manage_editBonAchatForm) (Info: C:\Program Files\Zope\lib\python\Products\BonAchat/BonAchatEdit.dtml) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_String.py, line 502, in __call__ (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_With.py, line 148, in render (Object: REQUEST.AUTHENTICATED_USER) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_With.py, line 133, in render (Object: getUser(id_resp_val)) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_Util.py, line 335, in eval (Object: getUser(id_resp_val)) (Info: getUser) File <string>, line 0, in ? File C:\Program Files\Zope\lib\python\AccessControl\User.py, line 666, in getUser (Object: RoleManager) File C:\Program Files\Zope\lib\python\ZODB\PersistentMapping.py, line 129, in get AttributeError: (see above) I must have made a mistake somewhere ....How can I do it ? Thanks by advance SY

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ZPatterns bug: Specialist does not implement _PropertySheetsFor(client)
by Steve Alexander 24 Aug '00

24 Aug '00

I'm using ZPatterns 0.4.1snap1. The LinkToParentProviders datamanager doesn't work properly because it assumes that the Specialist it lives in has a _PropertySheetsFor(client) method. However, Specialists (and DataManagers) don't provide this method. This stops /specialist/object/propertysheets/manage from working. It also stops _v_currentSheets from returning all the sheets a Dataskin might have. Phillip, is this fixed in your internal version? If not, I'll add the method over the weekend. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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Re: ZPatterns.. Property sheets... once and for all. ;-)
by Steve Alexander 24 Aug '00

24 Aug '00

Steve, I've applied my alteration to manage_tabs.dtml, and I have successfully created two propertysheets, "foo" and "bar", both with the string property "bart", and with different default values. All this, using the management interface on /specialist/object/propertysheets/foo/manage and the equivalent for bar. This is with the *very latest* CVS Zope 2 and ZPatterns 0-4-1snap1. I was using a Dataskin-derived ZClass instance. Perhaps that makes a difference? It really shouldn't matter though. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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